What isCoDeeN

CoDeeN is an
academic testbed Content Distribution Network (CDN) built on
top of PlanetLab by
the Network Systems
Group at Princeton University. This testbed CDN consists
of a network of high-performance proxy servers. Currently,
proxy servers have been deployed on many
PlanetLab nodes. These proxy servers behave both as
request redirectors and server surrogates. They
cooperate with each other and collectively provide a fast and robust web content delivery
service to CoDeeN
users.
A number of projects are related to CoDeeN, including the following:

How to UseCoDeeN

CoDeeN
follows an opt-in model: to take advantage of CoDeeN's service, you need to make a small
change to your browser's proxy configuration. Here are the
steps for two common browsers.

[Disclaimer:] CoDeeN is still under development, and while
we are striving to provide continual service, it may not
always be as smooth as we would like. If you are interested
in using CoDeeN,
please bear with us when problems arise, and feel free to
provide us with feedback on your experiences.

Before taking the following steps, you need to first pick
a proxy server near you from this list
and denote it as your-nearby-proxy. For example, Princeton users
may choose planetlab-1.cs.princeton.edu. Note: some
PlanetLab sites are currently filtering port 3128, so if that
port does not work, you should pick a different node or try
ports 3127 or 3124.

Browser

Internet Explorer

Netscape Navigator

Setup Procedure

In the IE window, click menu item "Tools" → "Internet
options..."

In the "Internet Options" dialog box, click
"Connections" tab

In this "Connections" tab,

If you have a Local Area Network (LAN) connection,
click "LAN Settings..." button at the right bottom.

If you have Dial-up or Virtual Private Network (VPN)
connections, choose the connection you are using from the
selection list at the top titled as "Dial-up and Virtual
Private Network settings" and then click "Settings..."
button on the right.

In either "Local Area Network (LAN) Settings" or
"Dial-up and Virtual Private Network settings" pop-up box,
find the "Proxy server" section, select "Use a proxy
server..." and click on the Advanced button. In the field
for an HTTP proxy, provide the name of your-nearby-proxy and set
"Port" to 3128. Click OK.

Click "Advanced" button to specify using HTTP proxy only.

Click OK in the "Internet Options" box.

You are ready to use CoDeeN now.

In the Navigator window, click menu item
"Edit" → "Preferences..."

In the pop-up "Preference" dialog box, on the left
column, click "Advanced", then click "Proxies".

On the right column, select "Manual proxy configuration"
and click "View..."

In the pop-up "Manual Proxy Configuration" dialogue
box, on the first row labeled as "HTTP", set "Address of
proxy server to use" to be your-nearby-proxy and "Port" to
be 3128. Click OK.

CoDeeN runs on the PlanetLab global network testbed. PlanetLab has been supported in part by the National Science Foundation* (under grants 0101247, 0454278, 0335214) and by DARPA (under contract N66001-05-1-8902). Support is also provided by companies that join the PlanetLab Consortium.

*Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

People

Privacy

All accesses via CoDeeN are logged,
mostly to aid in identifying abuse and other forms of damage
control. We sometimes monitor these logs, report abuse, and release
entries to aid in investigations. In case of suspicious traffic, we
may access URLs from the logs to determine what kind of content is
passing through our network. We are also using these logs in our own
research, so they may be examined as needed for non-abuse reasons. For
normal users, we do not expect that we will intentionally release any
personally-identifying information. To prevent abuse, some sites have
requested we pass along the client IP addresses, and these are
included with every request forwarded to those sites.